lithium battery 18650 3.7v technology, application of lithium battery 18650 3.7v energy storage system

　　lithium battery 18650 3.7v technology, application of lithium battery 18650 3.7v energy storage system. Research on lithium battery 18650 3.7v technology is surging at home and abroad. Its industrial chain can be divided into lithium titanate material preparation, lithium battery 18650 3.7v production and integration of lithium battery 18650 3.7v systems and its application in the electric vehicle and energy storage markets. The application markets of lithium titanate batteries mainly include electric vehicles, energy storage market and industrial applications.

　　lithium battery 18650 3.7v technology

　　Replace nano-lithium titanate materials with low-cost sub-micron lithium titanate materials, and establish a lithium battery 18650 3.7v material system for energy storage based on this. lithium battery 18650 3.7v has small size, light weight, high energy density, good sealing performance, no leakage, no memory effect, low self-discharge rate, rapid charge and discharge, long cycle life, wide working environment temperature range, safety, stability, green and environmental protection Features.

　　lithium battery 18650 3.7v technology should have the advantages of time, location, and people to compete among various energy storage batteries in my country. In terms of service life alone, the ultra-long cycle life of lithium titanate batteries is far better than that of various lead-acid batteries; its efficiency, cost and electrochemical performance are even better than those of sodium-sulfur and flow vanadium battery systems.

　　The applicable markets for lithium battery 18650 3.7v technology are hybrid electric vehicles, special industrial applications and energy storage applications such as frequency regulation and grid voltage support. These markets are still in their infancy around the world, and it is not yet clear who will be the leader. Lithium titanate technology is expected to be the leader in these markets.

　　Compared with the graphite material commonly used in traditional lithium-ion batteries, the skeleton structure of lithium titanate material hardly shrinks or expands during the process of charging and discharging lithium. It is called a "zero strain" material and avoids the detachment of general electrode materials. / The problem of electrode structure damage caused by unit cell volume strain when lithium ions are inserted, so it has very excellent cycle performance.

　　The main problem faced by lithium titanate batteries in large-scale applications is cost. At the beginning of project development, its price was 4-6 times that of lithium iron phosphate batteries. The price of lithium titanate batteries remains high. Although its performance is significantly better than existing lithium-ion batteries, economic factors have greatly restricted the market promotion of lithium titanate batteries.

　　There will still be bumps in the road ahead for lithium titanate batteries, but the direction is ultimately forward. The efforts made by industry enterprises and research institutions in the development of lithium battery 18650 3.7v technology will promote the continuous development of lithium titanate batteries.

　　Application of lithium battery 18650 3.7v energy storage system

　　Energy storage is considered to be the next trend in new energy, and people have high hopes for the application of lithium titanate batteries in the field of energy storage. Lithium titanate batteries have ultra-long cycle life, extraordinary safety, excellent power characteristics and good economy. These characteristics will be an important cornerstone of the emerging large-scale lithium battery energy storage system industry.

　　The development of energy storage technology is one of the key core technologies to promote new energy power generation and improve the security and stability of the power grid. Among various types of electrochemical energy storage technologies, lithium titanate batteries have the characteristics of long cycle life and good safety performance, which are well suited for grid energy storage application scenarios.

　　Taking the on-board energy storage system of rail transit vehicles as the object, a comparative analysis was conducted on the performance of on-board energy storage components such as supercapacitors, high-energy capacitors and lithium-ion batteries currently used in rail transit vehicles. It was concluded that lithium titanate batteries have high power density. , high energy density and high reliability technical characteristics. Combined with the research on the performance characteristics and control strategies of lithium titanate batteries, through comparison of project application examples and field tests, the technical advantages and broad prospects of large-scale application of lithium titanate batteries in subway vehicle energy storage systems are revealed.

　　In response to the needs of energy storage applications, based on the original lithium battery 18650 3.7v, the principles and technical solutions for the reconstruction of the lithium battery 18650 3.7v material system that meet the needs of energy storage applications were proposed, and submicron lithium titanate materials were developed. The lithium battery 18650 3.7v for energy storage developed in the project maintains the intrinsic characteristics of long life and high rate, and the cost is significantly reduced.

　　lithium battery 18650 3.7v energy storage technology provides technical accumulation for the construction of large-scale long-life lithium-ion battery energy storage systems, and at the same time lays a technical foundation for the industrial development of long-life lithium-ion battery energy storage devices and promotes the utilization of new energy.

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